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ReferenceCounter Class Reference

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#include <ReferenceCounter.hpp>

List of all members.


Public Member Functions

void reset ()
 Set counter to 0 and activate it.
bool increase ()
 returns false only when the reference counter was deactivated.
bool decrease ()
 returns false only when release is more often called than use
void deactivate ()
 deactivates the RefCounter.
bool deactivateWhenUsage (unsigned int i)
 deactivates the RefCounter.
bool decreaseAndDeactivateWhenUsage (unsigned int i)
 first decreases the refCounter then deactivates the RefCounter.
unsigned int getUsage () const

Detailed Description

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Author:
Michael Kropfberger and Peter Schojer
Version:
Id
ReferenceCounter.hpp,v 1.5 2005/04/27 10:21:50 klschoef Exp

Definition at line 61 of file ReferenceCounter.hpp.

Member Function Documentation

void ReferenceCounter::deactivate (   ) 
 

deactivates the RefCounter.

Useful, when preparing to destroy the refCounter. Definition at line 99 of file ReferenceCounter.cpp.

00100 {
00101         lock();
00102         valid=false; usageCnt=0;
00103         unlock();
00104 };

bool ReferenceCounter::deactivateWhenUsage (  unsigned int  i  ) 
 

deactivates the RefCounter.

when usage is lower equal

Parameters:
i returns true when refcounter was deactivated
Definition at line 125 of file ReferenceCounter.cpp.
00126 {
00127         lock();
00128         if(usageCnt<=i) {
00129                 valid=false;
00130                 usageCnt=0;
00131         }
00132         unlock();
00133         return !valid;
00134 };

bool ReferenceCounter::decreaseAndDeactivateWhenUsage (  unsigned int  i  ) 
 

first decreases the refCounter then deactivates the RefCounter.

when usage is lower equal

Parameters:
i 
return is true when refcounter was deactivated
Definition at line 136 of file ReferenceCounter.cpp.
00137 {
00138         lock();
00139         if(valid && usageCnt>0) {
00140                 usageCnt--;
00141         }
00142         if(usageCnt<=i) {
00143                 valid=false;
00144         }
00145         unlock();
00146         return !valid;
00147 };

The documentation for this class was generated from the following files: